Ceiling machine water pump test fixture and system

Abstract

The application discloses a kind of patio machine water pump test tool and system, wherein the test tool includes test module and control module. Wherein the test module includes water storage tank, water injection device, water circulation device and backwater device;The control module is connected with the test module, for controlling the water injection device to the water tray, and when the water of the water tray reaches the liquid level switch in the water pump to be tested, triggers the water circulation device to carry out noise test to the water pump to be tested, after testing, can control the backwater device to the water of the water tray flows back to the water storage tank. Compared with prior art, the patio machine water pump test tool disclosed in the application not only solves the problem that the patio machine water pump test is limited, but also can improve test efficiency.

Description

Technical Field

[0001] This invention relates to the field of air conditioner technology, and in particular to a testing fixture and system for a ceiling-mounted water pump. Background Technology

[0002] During summer use, air conditioners produce a large amount of condensate in the indoor unit. Ordinary household air conditioner indoor units drain the condensate by gravity. However, due to their unique structure and installation method, ceiling-mounted air conditioners cannot directly solve the drainage problem using natural drainage. Therefore, they are usually designed with a water pump to pump the water, thus preventing excessive water accumulation in the drip tray from dripping down and affecting the user experience.

[0003] In existing technologies, water pumps need to be installed on air conditioners or similar structures to reflect the true effect. At the same time, air conditioners only produce condensate when the whole unit is in cooling mode. Without disassembling the unit, water cannot be injected into the drip tray, which limits water pump testing. Furthermore, during the testing process, the pump head needs to be frequently switched due to different drainage methods and drainage heights, which is very time-consuming and labor-intensive, resulting in low water pump testing efficiency.

[0004] Therefore, in order to solve the above problems, the present invention provides a testing fixture and system for well pumps with high testing efficiency. Summary of the Invention

[0005] This invention provides a testing fixture and system for riser pumps, aiming to solve the problems of limited testing and low testing efficiency in existing riser testing.

[0006] To address the aforementioned technical problems, this invention provides a test fixture for a riser pump, used to test a pump under test. The pump under test is installed on a water receiving tray in the riser. The fixture includes: a test module comprising a water storage tank, a water injection device, a water circulation device, and a return water device; and a control module connected to the test module, used to control the water injection device to inject water into the water receiving tray, and to trigger the water circulation device to perform a noise test on the pump under test when the water in the receiving tray reaches the level switch in the pump under test. After the test is completed, the return water device can be controlled to return the water in the receiving tray to the water storage tank.

[0007] Furthermore, one end of the water injection device is connected to the water storage tank and the other end is connected to the water receiving tray; one end of the water circulation device is connected to the water pump to be tested and the other end is connected to the water receiving tray; one end of the water return device is connected to the water circulation device and the other end is connected to the water storage tank.

[0008] Furthermore, the water injection device includes a first check valve and a water pump. One end of the water pump is connected to the water storage tank, and the other end is connected to one end of the first check valve. The other end of the first check valve is connected to a water receiving tray.

[0009] Furthermore, the water circulation device includes a connector, a second check valve, and a head solenoid valve assembly. One end of the connector is connected to the water pump under test, and the other end is connected to one end of the second check valve. The other end of the second check valve is connected to one end of the head solenoid valve assembly, and the other end of the head solenoid valve assembly is connected to the water receiving tray.

[0010] Furthermore, the head solenoid valve assembly includes a first head solenoid valve and a second head solenoid valve, wherein the first head solenoid valve and the second head solenoid valve are connected in parallel.

[0011] Furthermore, the water circulation device also includes a water pressure sensor, one end of which is connected to one end of the head solenoid valve assembly, and the other end is connected to one end of the return water device.

[0012] Furthermore, the water return device includes a water return solenoid valve, one end of which is connected between the water pressure sensor and the head solenoid valve assembly, and the other end is connected to the water storage tank.

[0013] Furthermore, the control module includes a water injection unit, a range selection unit, and a water return unit. The water injection unit controls the water injection device to add water from the water storage tank to the water receiving tray. The range selection unit controls the water circulation device to select the head solenoid valve. The water return unit controls the water return device to discharge water from the water receiving tray into the water storage tank.

[0014] Furthermore, the water injection unit includes a first water injection button, a second water injection button, a start / stop button, and an automatic button; the range selection unit includes a first range button, a second range button, a cycle stop button, and a water pressure display button.

[0015] Furthermore, another aspect of the present invention provides a wellhead pump testing system, which includes the aforementioned testing fixture.

[0016] The present invention discloses a test fixture and system for a wellhead pump, comprising a test module and a control module. By connecting the control module to the test module, water injection is controlled to fill the water tray. When the water in the tray reaches the level switch, a water circulation device is triggered to perform a noise test on the pump under test. After the test is completed, a return water device can be controlled to return the water in the tray to the storage tank. This not only solves the problem of limited testing of wellhead pumps but also improves testing efficiency. The wellhead pump test fixture disclosed in this invention solves the problems of limited testing and low testing efficiency in existing wellhead pump testing methods. Attached Figure Description

[0017] To more clearly illustrate the technical solutions of the embodiments of the present invention, the drawings used in the following description of the embodiments will be briefly introduced. Obviously, the drawings described below are some embodiments of the present invention. For those skilled in the art, other drawings can be obtained based on these drawings without creative effort.

[0018] Figure 1 This is a block diagram of a test fixture for a wellhead pump provided in an embodiment of the present invention;

[0019] Figure 2 This is a block diagram of the test module of the well pump test fixture provided in an embodiment of the present invention;

[0020] Figure 3 This is a schematic diagram showing the connection between the test module of the wellhead pump test fixture provided in an embodiment of the present invention and the wellhead pump;

[0021] Figure 4 This is a block diagram of the control module of the wellhead pump testing fixture provided in an embodiment of the present invention;

[0022] Figure 5 This is a block diagram of a well pump testing system provided in an embodiment of the present invention. Detailed Implementation

[0023] The technical solutions of the embodiments of the present invention will be clearly and completely described below with reference to the accompanying drawings. Obviously, the described embodiments are only some, not all, of the embodiments of the present invention. Based on the embodiments of the present invention, all other embodiments obtained by those skilled in the art without creative effort are within the scope of protection of the present invention.

[0024] It should be understood that, when used in this specification and the appended claims, the terms "comprising" and "including" indicate the presence of the described features, integrals, steps, operations, elements and / or components, but do not exclude the presence or addition of one or more other features, integrals, steps, operations, elements, components and / or collections thereof.

[0025] It should also be understood that the terminology used in this specification is for the purpose of describing particular embodiments only and is not intended to limit the invention. As used in this specification and the appended claims, the singular forms “a,” “an,” and “the” are intended to include the plural forms unless the context clearly indicates otherwise; and as used in this specification and the appended claims, directional terms such as “above,” “below,” and “side” are generally used in relation to the direction shown in the drawings or relative to the user’s normal usage position, unless the context clearly indicates otherwise.

[0026] It should also be further understood that the term "and / or" as used in this specification and the appended claims refers to any combination of one or more of the associated listed items and all possible combinations, and includes such combinations.

[0027] Figure 1 This is a block diagram of a test fixture for a wellhead pump provided in an embodiment of the present invention; Figure 2 This is a block diagram of the test module of the well pump test fixture provided in an embodiment of the present invention; Figure 3 This is a schematic diagram showing the connection between the test module of the wellhead pump test fixture provided in an embodiment of the present invention and the wellhead pump; Figure 4 This is a block diagram of the control module of the wellhead pump testing fixture provided in an embodiment of the present invention; Figure 5 This is a block diagram of a wellhead pump testing system provided in an embodiment of the present invention. Figure 1 and Figure 2As shown, the riser pump testing fixture 10 of this embodiment is used to test the pump under test, which is installed on the water receiving tray in the riser. It includes a testing module 11 and a control module 12. The testing module 11 includes a water storage tank 111, a water injection device 112, a water circulation device 113, and a return water device 114. The control module 12 is connected to the testing module 11 and is used to control the water injection device 112 to inject water into the water receiving tray. When the water in the receiving tray reaches the level switch in the pump under test, the water circulation device 113 is triggered to perform a noise test on the pump. After the test is completed, the return water device 112 can be controlled to return the water in the receiving tray to the water storage tank 111. In this embodiment, by connecting the control module 12 to the test module 11, the water injection device 112 is controlled to inject water into the water receiving pan. When the water in the water receiving pan reaches the liquid level switch, the water circulation device 113 is triggered to perform a noise test on the water pump under test. After the test is completed, the return water device 114 is controlled to return the water in the water receiving pan to the water storage tank 111. This not only solves the problem of limited testing of the well machine water pump, but also improves the testing efficiency.

[0028] In one embodiment, such as this embodiment, as Figure 3As shown, specifically, one end of the water injection device 112 is connected to the water storage tank 111, and the other end is connected to the water receiving tray; one end of the water circulation device 113 is connected to the water pump under test, and the other end is connected to the water receiving tray; one end of the water return device 114 is connected to the water circulation device 113, and the other end is connected to the water storage tank 111; the water injection device 112 includes a first one-way valve and a water pump, one end of the water pump is connected to the water storage tank 111, and the other end is connected to one end of the first one-way valve, the other end of the first one-way valve is connected to the water receiving tray; the water circulation device 113 includes a connector, a second one-way valve, and a head solenoid valve assembly, one end of the connector is connected to the water pump under test, and the other end is connected to the water receiving tray. One end of the pump is connected to one end of the second one-way valve, and the other end of the second one-way valve is connected to one end of the pump solenoid valve assembly. The other end of the pump solenoid valve assembly is connected to the water receiving tray. More specifically, the pump solenoid valve assembly includes a first pump solenoid valve and a second pump solenoid valve, which are connected in parallel. The water circulation device 113 also includes a water pressure sensor, one end of which is connected to one end of the pump solenoid valve assembly, and the other end is connected to one end of the return water device 114. The return water device 114 includes a return water solenoid valve, one end of which is connected between the water pressure sensor and the pump solenoid valve assembly, and the other end is connected to the water storage tank 111. Understandably, the first pump solenoid valve and the second pump solenoid valve are solenoid valves with different pump heads. In this embodiment, the first pump solenoid valve has a lower pump head, and the second pump solenoid valve has a higher pump head. The higher the pump head, the smaller the water flow rate of the pump under test. It should be noted that, in this embodiment, the connector is a quick connector to facilitate connection with the water pump under test; the quick connector is connected to the second one-way valve, the second one-way valve to the head solenoid valve assembly, the head solenoid valve assembly to the water pressure sensor, the water pressure sensor to the return water solenoid valve, the return water solenoid valve to the water storage tank 111, the water storage tank 111 to the pump, the pump to the first one-way valve, and the first one-way valve to the water receiving tray via water pipes. It should also be noted that, in this embodiment, the water pressure sensor is used to monitor the water pressure flowing from the head solenoid valve assembly to the water receiving tray or the return water solenoid valve; understandably, during the test, multiple water pumps under test can also be installed on the water receiving tray, and the interface of the control module 12 can be adjusted accordingly to control multiple water pumps under test. In practical applications, multiple water pumps under test can be tested sequentially.

[0029] In one embodiment, such as this embodiment, as Figure 4As shown, the control module 12 includes a water injection unit 121, a range selection unit 122, and a return water unit 123. The water injection unit 121 controls the water injection device 112 to add water from the water storage tank 111 to the water receiving tray. The range selection unit 122 controls the water circulation device 113 to select the head solenoid valve. The return water unit 123 controls the return water device 114 to discharge water from the water receiving tray back into the water storage tank 111. Specifically, the water injection unit 121 includes a first water injection button, a second water injection button, a start / stop button, and an automatic button. The first and second water injection buttons indicate different water injection volumes. In this embodiment, the first water injection button injects less water than the second water injection button. The start / stop button is used to manually start or stop water injection into the water receiving tray. The automatic button automatically stops water injection when the water volume injected into the water receiving tray reaches the set injection volume. More specifically, the range selection unit 122 includes a first range button, a second range button, a cycle stop button, and a water pressure display button. The first range button and the second range button respectively activate the first and second lift solenoid valves. The cycle stop button stops the test on the water pump under test. The water pressure display button displays green when the water pressure value collected by the water pressure sensor stabilizes, and red otherwise. It should be noted that in this embodiment, the return water unit 123 is equipped with a start / stop button and an automatic return water button. The automatic return water button automatically opens the return water solenoid valve when the water pressure display button is green, allowing water in the receiving tray to flow back to the water storage tank 111. It should also be noted that in this embodiment, the current water injection volume and the noise test time are also displayed on the interface corresponding to the control module 12 for the convenience of the test personnel.

[0030] The wellhead pump testing system 100 includes the aforementioned testing fixture 10 and wellhead 20. The testing fixture 10 is connected to the water pump to be tested and the water receiving tray inside the wellhead 10 to perform testing on the water pump to be tested.

[0031] For ease of understanding, the following describes in detail how the above-ground machine water pump testing fixture 10 performs tests on the water pump to be tested.

[0032] The tester clicks the first or second water injection button in the water injection unit 121 to select the water injection volume according to the test requirements. After the water injection volume is selected, the start / stop button and the automatic button are clicked in sequence to open the first one-way valve and start the water pump to inject water from the water storage tank 111 into the water receiving tray. When the water in the receiving tray reaches the selected water injection volume, the water injection automatically stops. Alternatively, the automatic button can be left unclicked, and the water injection volume can be manually controlled. After the water injection is complete, the water level in the receiving tray reaches the liquid level switch. At this time, the water pump under test will pump the water in the receiving tray through the connector to the second one-way valve, and then return the water to the receiving tray via the first or second range button selected by the tester according to the test requirements and the water pressure sensor to perform a noise test on the water pump under test. During the noise test, when the water pressure sensor collects... If the water pressure value is greater than the preset water pressure value or the water pressure fluctuation within a preset time is less than the preset fluctuation threshold, it can be determined that the noise test operation of the water pump under test is stable, and the water pressure display button is set to green. The preset water pressure value is 0 MPa; the preset fluctuation threshold is 5%. After the noise test is completed, if the tester selects the automatic return water button, the return water solenoid valve will be automatically opened to return the water in the water receiving tray to the water storage tank 111. When the water pressure value collected by the water pressure sensor is less than the preset water pressure value, it can be determined that the water in the water receiving tray has been pumped out, and the return water solenoid valve will be automatically closed. It can be understood that if the tester selects the start / stop button in the return water unit 123, after the water in the water receiving tray is pumped out, the tester needs to click the start / stop button in the return water unit 123 again to close the return water solenoid valve.

[0033] The test fixture for the wellhead pump provided by this invention connects the control module and the test module. The control module injects water into the water receiving pan, and when the water in the receiving pan reaches the level switch, it triggers the pump under test to perform a noise test. After the test is completed, the control module drains the water from the receiving pan. This not only solves the problem of limited testing of wellhead pumps, but also improves testing efficiency. Specifically, this invention solves the problems of limited testing of ceiling-mounted pumps due to installation on the water receiving tray, and the sequential connection of the pump, connector, second check valve, head solenoid valve assembly, water pressure sensor, and water receiving tray via water pipes to form a water circulation device; a water injection device is formed by connecting the water storage tank, pump, and first check valve via water pipes; a water return device is formed by connecting the head solenoid valve assembly, return solenoid valve, and water storage tank via water pipes; finally, water injection, water circulation noise testing, and water return are performed through the water injection unit, range selection unit, and return unit in the control module. This solves the problems of ceiling-mounted pump testing being limited by installation on the indoor unit of the ceiling-mounted pump and the absence of water in the receiving tray. Because the entire testing process is automatically controlled, frequent range switching is unnecessary, improving testing efficiency. Therefore, the ceiling-mounted pump testing fixture disclosed in this invention solves the problems of limited testing and low testing efficiency in existing ceiling-mounted pump testing.

[0034] The above description is merely a specific embodiment of the present invention, but the scope of protection of the present invention is not limited thereto. Any person skilled in the art can easily conceive of various equivalent modifications or substitutions within the technical scope disclosed in the present invention, and these modifications or substitutions should all be covered within the scope of protection of the present invention. Therefore, the scope of protection of the present invention should be determined by the scope of the claims.

Claims

1. A testing fixture for a water pump in a riser, used for testing a water pump to be tested, wherein the water pump to be tested is installed on a water receiving tray in the riser, characterized in that... The test fixture includes: The test module includes a water storage tank, a water injection device, a water circulation device, and a water return device. The control module is connected to the test module and is used to control the water injection device to inject water into the water receiving tray. When the water in the water receiving tray reaches the liquid level switch in the water pump under test, the water circulation device is triggered to perform a noise test on the water pump under test. After the test is completed, the return water device can be controlled to return the water in the water receiving tray to the water storage tank. Wherein, one end of the water injection device is connected to the water storage tank and the other end is connected to the water receiving tray; one end of the water circulation device is connected to the water pump to be tested and the other end is connected to the water receiving tray; one end of the water return device is connected to the water circulation device and the other end is connected to the water storage tank. The water circulation device includes a connector, a second check valve, and a head solenoid valve assembly. One end of the connector is connected to the water pump under test, and the other end is connected to one end of the second check valve. The other end of the second check valve is connected to one end of the head solenoid valve assembly, and the other end of the head solenoid valve assembly is connected to the water receiving tray. The water injection device includes a first one-way valve and a water pump. One end of the water pump is connected to the water storage tank, and the other end is connected to one end of the first one-way valve. The other end of the first one-way valve is connected to a water receiving tray.

2. The test fixture for the wellhead pump according to claim 1, characterized in that, The solenoid valve assembly includes a first solenoid valve and a second solenoid valve, wherein the first solenoid valve and the second solenoid valve are connected in parallel.

3. The test fixture for the wellhead pump according to claim 1, characterized in that, The water circulation device also includes a water pressure sensor, one end of which is connected to one end of the head solenoid valve assembly, and the other end is connected to one end of the return water device.

4. The test fixture for the wellhead pump according to claim 3, characterized in that, The water return device includes a water return solenoid valve, one end of which is connected between the water pressure sensor and the head solenoid valve assembly, and the other end is connected to the water storage tank.

5. The test fixture for the wellhead pump according to claim 2, characterized in that, The control module includes a water injection unit, a range selection unit, and a return water unit. The water injection unit controls the water injection device to add water from the water storage tank to the water receiving tray. The range selection unit controls the water circulation device to select the head solenoid valve. The return water unit controls the return water device to discharge water from the water receiving tray into the water storage tank.

6. The test fixture for the wellhead pump according to claim 5, characterized in that, The water injection unit includes a first water injection button, a second water injection button, a start / stop button, and an automatic button; the range selection unit includes a first range button, a second range button, a cycle stop button, and a water pressure display button.

7. A test system for a wellhead pump, characterized in that, Includes the wellhead pump testing fixture as described in any one of claims 1-6.

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